| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 76. L M Kovacs vs W Pietzsch |
| ½-½ | 49 | 1966 | Czechoslovak Championship (International) | A07 King's Indian Attack |
| 77. L M Kovacs vs E Jimenez Zerquera |
| ½-½ | 34 | 1966 | Czechoslovak Championship (International) | A95 Dutch, Stonewall |
| 78. E Nowak vs L M Kovacs |
| 0-1 | 31 | 1966 | Czechoslovak Championship (International) | C95 Ruy Lopez, Closed, Breyer |
| 79. L M Kovacs vs I Bilek |
| ½-½ | 17 | 1966 | Czechoslovak Championship (International) | C93 Ruy Lopez, Closed, Smyslov Defense |
| 80. L M Kovacs vs N Padevsky |
| ½-½ | 12 | 1966 | Czechoslovak Championship (International) | D32 Queen's Gambit Declined, Tarrasch |
| 81. Jansa vs L M Kovacs |
| 1-0 | 38 | 1966 | Czechoslovak Championship (International) | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 82. J Augustin vs L M Kovacs |
| ½-½ | 43 | 1966 | Czechoslovak Championship (International) | C81 Ruy Lopez, Open, Howell Attack |
| 83. L M Kovacs vs Kavalek |
| 1-0 | 43 | 1966 | Czechoslovak Championship (International) | B90 Sicilian, Najdorf |
| 84. L M Kovacs vs Filip |
| 0-1 | 56 | 1966 | Czechoslovak Championship (International) | B28 Sicilian, O'Kelly Variation |
| 85. J Flesch vs L M Kovacs |
| 0-1 | 34 | 1966 | Hungarian Championship | D55 Queen's Gambit Declined |
| 86. L M Kovacs vs L Prelovszky |
| 1-0 | 36 | 1966 | Hungarian Championship | B06 Robatsch |
| 87. Barcza vs L M Kovacs |
| 1-0 | 30 | 1966 | Hungarian Championship | A00 Uncommon Opening |
| 88. L M Kovacs vs J Tompa |
| 0-1 | 91 | 1966 | Hungarian Championship | C53 Giuoco Piano |
| 89. G Kluger vs L M Kovacs |
| 0-1 | 46 | 1966 | Hungarian Championship | A22 English |
| 90. L M Kovacs vs I Polgar |
| ½-½ | 37 | 1966 | Hungarian Championship | C95 Ruy Lopez, Closed, Breyer |
| 91. G Szilagyi vs L M Kovacs |
| 1-0 | 41 | 1966 | Hungarian Championship | A22 English |
| 92. L M Kovacs vs E Haag |
| 0-1 | 57 | 1966 | Hungarian Championship | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 93. Adorjan vs L M Kovacs |
| ½-½ | 34 | 1966 | Hungarian Championship | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 94. L M Kovacs vs F Portisch |
| 1-0 | 46 | 1966 | Hungarian Championship | A07 King's Indian Attack |
| 95. E Varnusz vs L M Kovacs |
| 0-1 | 28 | 1966 | Hungarian Championship | A07 King's Indian Attack |
| 96. L M Kovacs vs J Pogats |
| 0-1 | 44 | 1966 | Hungarian Championship | B24 Sicilian, Closed |
| 97. T Besztercsenyi vs L M Kovacs |
| 1-0 | 40 | 1966 | Hungarian Championship | C79 Ruy Lopez, Steinitz Defense Deferred |
| 98. L M Kovacs vs Csom |
| ½-½ | 54 | 1966 | Hungarian Championship | E80 King's Indian, Samisch Variation |
| 99. P Dely vs L M Kovacs |
| 1-0 | 69 | 1966 | Hungarian Championship | C94 Ruy Lopez, Closed, Breyer Defense |
| 100. L M Kovacs vs L Sapi |
| 1-0 | 38 | 1966 | Hungarian Championship | B07 Pirc |
Kibitzing
